EP 4088850 B1 20240828 - ARC WELDING CONTROL METHOD AND ARC WELDING DEVICE
Title (en)
ARC WELDING CONTROL METHOD AND ARC WELDING DEVICE
Title (de)
VERFAHREN ZUR STEUERUNG EINER LICHTBOGENSCHWEISSUNG UND LICHTBOGENSCHWEISSVORRICHTUNG
Title (fr)
PROCÉDÉ DE COMMANDE DE SOUDAGE À L'ARC ET DISPOSITIF DE SOUDAGE À L'ARC
Publication
Application
Priority
- JP 2020000365 A 20200106
- JP 2020048898 W 20201225
Abstract (en)
[origin: US2022266372A1] Provided is an arc welding control method for performing control in an arc period, the control including: first control of increasing welding current (Ia) to first current value (I1) in a range from 200 A to 300 A inclusive at first gradient (S1) and maintaining welding current (Ia) at first current value (I1) for first period (T1); second control of reducing welding current (Ia) from first current value (I1) to second current value (I2) at second gradient (S2) and maintaining welding current (Ia) at second current value (I2) for second period (T2); third control of increasing welding current (Ia) from second current value (I2) to third current value (I3) higher than first current value (I1) at third gradient (S3); and fourth control that is started to reduce welding current (Ia) from third current value (I3) within 0.5 ms after welding current (Ia) reaches third current value (I3) under the third control.
IPC 8 full level
B23K 9/073 (2006.01); B23K 9/09 (2006.01); B23K 9/095 (2006.01); B23K 9/173 (2006.01); B23K 35/38 (2006.01)
CPC (source: CN EP US)
B23K 9/073 (2013.01 - CN); B23K 9/0732 (2013.01 - EP US); B23K 9/092 (2013.01 - EP); B23K 9/0953 (2013.01 - EP); B23K 9/0956 (2013.01 - EP US); B23K 9/16 (2013.01 - CN); B23K 9/173 (2013.01 - EP); B23K 35/38 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2022266372 A1 20220825; CN 114390956 A 20220422; CN 114390956 B 20240315; EP 4088850 A1 20221116; EP 4088850 A4 20230607; EP 4088850 B1 20240828; JP WO2021140970 A1 20210715; WO 2021140970 A1 20210715
DOCDB simple family (application)
US 202217683296 A 20220228; CN 202080063528 A 20201225; EP 20913040 A 20201225; JP 2020048898 W 20201225; JP 2021570028 A 20201225